Home / 871,645.50-1,202,936.40-532,179.36

Finding the Fourth Proportional to 871,645.50, 1,202,936.40 and 532,179.36

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Solution

The fourth proportional to 871,645.50, 1,202,936.40 and 532,179.36 is: 734,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,645.50 : 1,202,936.40 = 532,179.36 : x
  2. Step 2: Convert to fraction form
    871,645.50/1,202,936.40 = 532,179.36/x
  3. Step 3: Cross multiply
    871,645.50x = 1,202,936.40 × 532,179.36
  4. Step 4: Simplify right side
    871,645.50x = 640,177,923,472.70
  5. Step 5: Solve for x
    x = 640,177,923,472.70/871,645.50
  6. Step 6: Final answer
    x = 734,447.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.